Benchtop Spectrophotometer CM-3700A

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Benchtop Spectrophotometer CM-3700A

Built for performance and reliability, the benchtop Spectrophotometer CM-3700A is a top-of-the-line measurement instrument designed to precisely evaluate the color and appearance of opaque, transparent, translucent, and fluorescent samples. This high precision, versatile spectrophotometer is used to evaluate, reproduce, and help control the color and appearance of samples in a more effective, streamlined process. Its advanced capabilities and unwavering performance enable users to formulate and match color quality standards more efficiently, maintain consistency in each batch of material, and help communicate color seamlessly internally and throughout the supply chain. This makes the CM-3700A ideal for color analysis, formulation, and quality control inspections within laboratory and manufacturing environments.

The benchtop Spectrophotometer CM-3700A is compatible with SpectraMagic NX2 software to record measurements and provide a more comprehensive color analysis, as well as Colibri software to formulate color recipes for various applications and share real-time measurement data.

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  • Eligible ISO 17025 Certification
  • Includes aperture sizes of 3x5mm, 8mm, and 25.4mm to accurately evaluate the color of a wide variety of samples small to large in size; automatically detects aperture size and communicates to color analysis software, SpectraMagic NX2, for improved user convenience
  • Measures opaque, transparent, translucent, and fluorescent samples light to dark in color and low to high in saturation
  • Tight inter-instrument agreement of ΔE*ab 0.08, allowing color values and specifications to be communicated, shared, and coordinated seamlessly throughout the supply chain
  • High precision measurements to maintain consistent results internally and across the supply chain
  • Can switch between SCE and SCI measurement modes to accommodate the surface conditions of each sample
  • Hand assembled with quality parts, making it durable and reliable to keep customer operations running as smooth as possible
  • USB connection conveniently allows users to connect to a PC or laptop
  • Conforms to standards CIE, ISO, ASTM, DIN, and JIS measurement requirements
  • Integrates with SpectraMagic NX2 software for color quality control, as well as Colibri software for color formulation


Model CM-3700A

observation system


di:8° , de:8° (diffuse illumination, 8° viewing angle)
SCI (specular component included) / SCE (specular component excluded) switchable
Conforms to CIE No.15, lSO 7724/1, ASTM E 1164, DIN 5033 Teil 7 and JIS Z 8722 condition c standard.


di:0° , de:0° (diffuse illumination, 0° viewing angle)
Conforms to CIE No.15, ASTM E 1164, DIN 5033 Teil 7 and JIS Z 8722 condition g standard.


Silicon photodiode array with flat holographic grating

Wavelength range

360nm to 740 nm

Wavelength pitch

10 nm

Half bandwidth

Approximately 14 nm average

Photometric range

0 to 200%; Resolution: 0.001%

Light source

Pulsed xenon arc lamp

Minimum measurement interval

3 seconds

measurement area


Changeable between LAV, MAV, and SAV
SAV: 5
× 7 mm illumination/3 ×5 mm measurement
MAV: ø 11 mm illumination/ ø8 mm measurement
LAV: ø28 mm illumination/ ø25.4 mm measurement


ø25mm illumination/Approx. ø20 mm


When white calibration plate is measured 30 times at 10-sec. intervals after white calibration has been performed:
Spectral reflectance: Standard deviation within 0.05%
Chromaticity: Standard deviation within ΔE*ab 0.005

When black tile (BCRA Series II; reflectance: 1%) is measured 30 times at 10-sec. intervals after white calibration has been performed:
Spectral reflectance:
380 to 740 nm: Standard deviation within 0.02%
360 and 370 nm: Standard deviation within 0.04%
Chromaticity: Standard deviation within ΔE*ab 0.05

Inter-instrument agreement (LAV)

Mean ΔE*ab 0.08 (typical) Average for 12 BCRA Series II color tiles
Max. ΔE*ab 0.3 (corresponds to ΔEcmc 0.2) for any of 12 BCRA Series II color tiles compared to values measured with Konica Minolta master body

UV adjustment

Computer controlled; Continuously variable; 400 nm cutoff filter

Transmittance chamber

Maximum sample thickness: Approx. 50 mm
Maximum sample length: Unlimited (transmittance chamber has no sides when transmittance chamber cover is open)
Sample holder (optional) for holding sheet samples or containers of liquid samples can be installed/removed.


USB 1.1


AC 100V to 240V 50/60Hz (using included AC adapter)

Operating temperature/
humidity range

13 to 33°C, relative humidity 80% or less (at 33°C) with no condensation

Storage temperature/
humidity range

0 to 40°C, relative humidity 80% or less (at 35°C) with no condensation

Dimensions (W × H ×D)

271 ×274 ×500 mm



Standard accessories

White Calibration Plate; Target Mask (3 ×m); Target Mask ( ø8 mm); Target Mask ( ø25.4 mm); Zero Calibration Box; AC Adapter; USB Cable (3 m); Accessory Case; Dust Cover

Optional accessories

Color Data Software SpectraMagic NX2; Transmittance Specimen Holder; Glass Cells (2 mm, 10 mm, 20 mm); Plastic Cells (2 mm, 10 mm, 20 mm); Transmittance Zero Calibration Plate; Color Tiles; USB Cable (5m)

Included Accessories

Accessory Case
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CM-A69 Dust Cover (for CM-3700d)
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CM-A91 Target Mask (3x5mm)
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CM-A92 Target Mask (dia: 8mm)
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CM-A93 Target Mask (dia: 25.4mm)
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USB Cable (CM) IF-A21
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White Cal. Plate CM-A154
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Zero Cal. Box CM-A155
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Suggested Accessories

1-ft LAN Cable
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CM-A100 Transmittance Zero Cal. Plate
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CM-A130 Plastic Cell (2mm) 100 per box
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CM-A131 Plastic Cell (10mm) 100 per box
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CM-A132 Plastic Cell (20mm) 100 per box
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CM-A96 Transmittance Specimen Holder
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Cell CM-A97 (2mm)
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CM-A98 Cell (10mm)
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Cell CM-A99 (20mm)
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EZ Spectro Checker
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USB Cable (5M) IF-A22
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Whiteness Standard AT-FTS 17b-023(Glossy) w/Box
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